Ok, so Im running Windows Xp Pro x64, and windows Vista 5308 on a dual boot just fine for a while, then I finally decide to try and get the PowerNow crap to work in XP pro since it was always running my Turion t 1.6Ghz at 1.6ghz weather it was on battery or not, so I download some drivers, they were for powernow, and I go to restart and it reboots just fine. Then when Im trying to change my power settings it freezes so I have to turn off my computer. Then when I go to turn it back on it just stays on the boot screen w/ the xp logo and the little bar going back and forth forever. It does the same thing If I try to boot up windows vista, and when I try to boot off the xp repair cd, it goes throug identifying all the hardware on the bottom and then it says "Setup is starting windows" and it does nothing after that, just stay theres, nothing else comes up jsut a blue screen. Oh yeah and It wont boot into Safe Mode or Last Known good Configuration, both just hang at the same time.\n\n\n\nHelp? Is there anyway to rollback cpu drivers? This has me stumped. I really dont want to reinstall my xp pro since I have a lot of stuff on it which I need. Take into mind this is a laptop I am talking a bout here.